drm/i915: pass dev_priv explicitly to EDP_PSR_AUX_DATA

Avoid the implicit dev_priv local variable use, and pass dev_priv
explicitly to the EDP_PSR_AUX_DATA register macro.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4e3dc15b170c2b64168e46ebf1802d63df34b4a2.1714471597.git.jani.nikula@intel.com


Signed-off-by: Jani Nikula <jani.nikula@intel.com>